Derivative Financial Instruments Scheduel of Offsetting of Derivative Assets (Details) - USD ($) $ in Thousands	Oct. 02, 2016	Dec. 31, 2015
Offsetting of Derivative Assets [Line Items]
Gross Amounts of Recognized Assets	$ 1,053	$ 3,205
Gross Amounts Offset in the balance sheet	0	0
Net Amounts of Assets Presented in the Balance Sheet	1,053	3,205
Financial Instruments	(1,053)	(451)
Cash Collateral Pledged	0	0
Net Amounts	0	2,754
Barclays [Member]
Offsetting of Derivative Assets [Line Items]
Gross Amounts of Recognized Assets		577
Gross Amounts Offset in the balance sheet		0
Net Amounts of Assets Presented in the Balance Sheet		577
Financial Instruments		(56)
Cash Collateral Pledged		0
Net Amounts		521
J.P. Morgan Chase [Member]
Offsetting of Derivative Assets [Line Items]
Gross Amounts of Recognized Assets	92
Gross Amounts Offset in the balance sheet	0
Net Amounts of Assets Presented in the Balance Sheet	92
Financial Instruments	(92)
Cash Collateral Pledged	0
Net Amounts	0
Wells Fargo Bank [Member]
Offsetting of Derivative Assets [Line Items]
Gross Amounts of Recognized Assets	961	2,628
Gross Amounts Offset in the balance sheet	0	0
Net Amounts of Assets Presented in the Balance Sheet	961	2,628
Financial Instruments	(961)	(395)
Cash Collateral Pledged	0	0
Net Amounts	$ 0	$ 2,233